Typewriting machine



July 14, 1925. 1,545,867

J. WALDHEIM TYPEWRITING MACHINE Original Filed June 17, 1921 3 Sheets-Sheet 1 lnven for:

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flrrorne July 14, 1925.

J. WALDHEIM TYPEWRITING MACHINE 3 Sheets-Sheet 2 Original Filed June 1921 lnvenior:

w; b W

July' 14, 1925.

J. WALDHEIM TYXEWRITING MACHINE Original Fiied June 17, 1921 s Sheets-sheaf, 5

I Inventor:

b I Mfume Patented July 14, 1925.

JOHN WALDHEIM, OF ELIZABETH, NEVV JERSEY, ASSIGNOR' TO' UNDERWO0DTY3 3E- WRITER COMPANYQOF :nnwyoniz, N. AIGOBPORATION1'OF DELAWARE.

ryrnwnmine iancnrnn.

Original application filed June 17;. 1921, Seria1.No.478,2"31.. Dividediand this application filed liebrilary- 5, 1924. Serial No. 690,596.

ToaZZ. whom it may" concern:

Be .it known that 1, JOHN l/Vannnnnsga citizen of the United States, residing in Elizabeth, in the county. of. Union. and State of New Jersey, have. invented certain new and useful Improvements in Typewriting M chines, of which-the following isa specification. ,7 V

This invention relates to improvements in connection withsound-deadening casings o1" hoods for typewriting machines, the .hood

beingof the same. general typeIas. that vdis closed in thew-pending application of B. (l.

Stickney, Serial No: 429.617, filedDecember 10.. 1920 (now Patent No. 1,519,224,. dated.

be rotatedland the carriagereleased and returned from the exterior of thecasing. This applicationl is a division of .my, (so-pending application,.SerialNo; 478 231, filed June 17. 1921. a l 1 g y One feature of the present iinvention .is. to

provide a- .hood with an .openinginthe hack wall-and ;areleasable cover plate. at said opening to enable the hood. to he slid: over the machine fromvthev front. f The front wall of the -.body ,part; of the hood is provided with a cut-out large .enough lto clear the.

keyboard, section ofthe .machine anchthe usual line-lock release-key and ribbon-color shift-keys. y

Another; feature .of the invention relates to improved .means,-.comprising a single fin-' geiepiece for. securing zthe releasable plate on the hood.

Another feature relates tonieans toes tablish the position of theunachine on the base upon which it stands, saidmeanscoinp 'ising metal plates to be engaged. the feet of the machine, said v plates being 10- catedin holes in the base into which the feet of the machine may .readilyflbe inserted.

It is anotherfeaturelofthis inventionto" provide means wherebythe sound-deadening casing and, the mach ne may .be .held firmly attached to eaclrother.

Still another feature of; this invention is theprovisionof novel'mean's for effectively closing the slot of the casing through which Various handles roject from the typewriter carriage, to increase its resistanceto wear,

which iscaused by the traveling. ofthe care riage-release handle when the-latter. is depressed. For thispurpose, there is provided a cushion strip and a co-opcrating yield} ably mounted bar directly opposed to said cushion and in engagement ftherewith, the

carriagerelease handle lprojecting between said strip and 'bar and ,pressing the'latter when operated.

Other features-and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective view ofthe invention applied to anUnderwood standard typewriting machine.

Figure 2 is a fragmentary rear view,

of the machine.

Figure 3 is a sectional side elevation of the device shown in Figure 1. l

Figure 4 'is ,a rear View of the casing,

showing the removable back plate.

"Figure .5 a detail perspective view of for holding the caslng' on the means base.

F gurefi 1s adetall, showing one of the ing machine.

Figure 7 is a positioning the machine within the casing;

showing the slot-closing means at the front cups for holding the feet ofthe typewriti I forward extension .11 of the main frame, in j which are positioned banks offlkeyslfl, sai d keys being carriedatthe forward ends of" key-levers 13, which, when depressed, op-- erate bell-cranks 1d to swing type-bars 15 upwardly and rearwardlyand cause types 16, carried thereb.y,.to strike againsta platen 17 at the printing point. Said platen is the end wallsl8 of a platen-frame 19 mountfixed upona shaft or axle 23, journaled in ed in a carriage 20, having" letter-feeding.

movement, on front and rear rails 2lgand 22, fixedtothemain frame 1.0. The platen may be rotated. by a knob or. finger-wheel 25 fixed to the end of the shaft 23, or by theusual line-spacing,mechanism. of which 50 being locked tosaid wall by aslidable latch only the line-space handle 26 is shown. The carriage is provided with the usual pointer 27 operating over scale 28, and may be returned to the right by a finger-piece 29 fixed thereto, or released from the letter-feeding mechanism by a carriage-release lever or handle 30.

The main frame 10 comprises four posts 31, which are provided at their lower ends with rubber feet 32, which rests on metal disks 35 having downwardly-pressed prongs ing or hood is mounted, in order to seal the 7 lower edges of the hood against escape of sound. By referring to Figure 1, it will be seen that the sound-deadening casing orv hood may, therefore, be slid along thebase or felt pad 37 and onto the machine from the front thereof, without encountering any obstruction and without requiring the casing to be lowered vertically. To permitthe casing to be mounted in this manner, it comprises a cover part 51 hingedly connected at the rear to a body part-52 (Figure 3), said body part comprising a front wall 53,

formed preferably integral with side walls 54 and a rear wall 55 extending upwardly a distance above the highest point of the typewriting machine, and provided with an opening 56 (Figure 4) large enough to:

permit passage of the machine therethrough, said opening being below the oint of the cover 51 to the body, of the casing and being closed by a releasable back plate 56. The latter is readily fixed upon, or removed from, the rear wall 55, the back plate being provided with hooks 57 (Figures 4 and 7) adjacent one side. edge which engage in slots 58 in the rear wallfor 1nounting the back plate on the wall, said plate or bolt 60 mounted on the plate adjacent the other side edge, and having fingers 61 engaging in openings ln pro ections 62 fixed to the rear wall and passing through slots ,in the back plate. The latch 60 is slidably mounted on the back plate by means of headed studs 63 fixed to the plate and] operating in longitudinal slots 64 in the latch, so that the latch may be operated upwardly and downwardly by a fingerpiece 65, the upward movement of latch 60 operating to withdraw fingers 61 from engagement with projections 62, to permit the latter to be withdrawn from the slots in the back plate, so that said plate may be swung rearwardly'and lifted off the rear wall by withdrawinghooks 57 from slots 58. 1

lVith the back plate 56 removed, the easing is slid along base 38 and pad 37, the forward extension 11 of the main frame entering the rear of the casing, and the latter being moved rearwardly until the for- Ward posts 31 of the main frame contact with abutments or locating devices fixed to the front wall of the casing, the forward extension 11 projecting forwardly through a keyboard opening formed in the front wall 53 and in" line with the opening 56 in the rear wall, permitting thecasing to be carried backwardly over the machine by a simple motion. Since the front-to-back dimensions of the machine are small, for com pactness, it will be understood'that the machine may occupy the front and rear openings simultaneously in assembling the machine with thecasing. The back plate is then applied in the manner described above, the machine being held firmly between the abutments 70, fixed to the front wall of the casing and-contacting with the forward posts 31 of the main frame, and abutments 71 carried by the back plate and contactingwith therear posts 31 of the main frame.-

The typewriter carriage is free to operate tothe right or left, the body part of the casing being provided with right and left extensions 75 over which the carriage travels, the cover part 51 being of suflicient lengthto 'co-operate with the upper edges of the body part, including the extensions. The cover part comprises end walls 76, cooperating with theside edges of extensions 75, a rear wall 7 7v by which it is hingedly connected (at the line .7, at the right-hand upper part of Figure 3) to the rear wall 55 of the body part, a forwardly-extending and downwardly-inclined ceiling 78 pro-' vided with a transparent plate 79 for permitting the typewriting within the casing to be viewed, and a short front wall 80 terminating some distance above the upper edge of front wall 53, so as to leave a longi tudinal slot 90 at the front of the machine. Through this slot project the line-space handle 26, carriage-return finger-piece 29, and carriage-release lever 30, soas to permit ordinary operation of the machine without necessitating raising of the cover. It is necessary, however, to close all of the slot not actually occupied by these fingerpieces, in order-to prevent transmission of sounds therethrough. For this purpose, two co-operating, members81 and 82 are provided, the former being mounted on the front wall 80 of the cover, and the latter on the front wall 53 of the body part. Member 81 comprises a fold or'cushion 83' of sounddeadening material, such as plush, felt or softleather, the upper edges of the fold being clampedfbetween two bars f Si l and 85, bolted togetherto form a single-unit, which is mounted onthe front wall 80. Cowper- -ating with cushion 8-3, to close the slot, is a bar 86in engagement-with "said cushion and directly opposed thereto; {As heretofore described, the various carriage-operating levers project throughthe slot 90,- -between cushion 83andbar 86, and, to permit downward movement of the carriage-release 'lever,;bar 86 must loe yield'ably' mounted. For this-purposmbar 86 may be mounted forbodily movement in a vertical direction-by a parallel linkage, which may he like that disclosed inciny co-pending application, No. 466,820, filed May" 4, 1921 *Qnow'Patent' "No.

1,519,645, dated Deeember 16, 1924) and may comprise bellecranlis 87, -*one near eachq end of the bar, said bell-cranks being interconnected by a link 88 and pivoted at89 to brackets "91, fixed to'the front'Wall 53 ofthe body part of the casing. A return-spring 92 for the bar 86 is "connected between one ofthe brackets 91 and the link 88. Bar 86 is preferably-of rigid materiaLbecause it is subject to much Wear due to the contact therewith of the carriage release lever, whichcis pressed against and slides along the bar; A stop 94 on the bell-crank 87 engages one end of a hole 94 in the br-acket I guided, so that it may properly engage with abutments or brackets IOO secured to the base by screws 100}, said-abutmen'ts engaging just outside the limits of the back plate 56, so asnotto interfere with the-attachingbfsaidplate, which is done after the hood has been located by the a butments. 'Felt pieces '101 may lieinterposed between brackets and therear wall 55 to absorb any vibration.

'To secure the hood-to the base, each side of the hood is provided with a 'projection or pin 97, said pins engaging underfo-r-- Wardly-projecting fingers -93 on the forward ends of theguide-bars 93.

' Since the hood may become accidentally displaced onthe base, it is desirableto provide means to guard against such displacement, and, consequently, retain'tlie pins 97 in engagement with the fingers 93 For this purpose, "there" are pivotally mounted,

nearthe forward ends ofjthe guide-bars 93, latches 95 toengage' the'pins"97*and hold themundrthe fingers 93 The-latches are formed at the forward ends of" pivoted bell crank levers 96, said latches being operable by fingerpieces 99wand" lmoveiagainst thev tension of springs (98;. With this::arrange-v ment itnwill be understood that, :in order to releasethe hood from thebase, it is :merely necessary :to ;pushu'the -:finger:p'iecesrear.- wardly untilthe 'latches95 disengage the pins 97 when the hood rmay be drawn. forwardly. "On itheiother hand, whenpattachw ingthe hood to the base, it .isqmerelye necessary to push the hood rearwardly untiL are rested by -the abutments 100, pins 97: being effective to engage under and raise the. latches, the latchessnapping :behind' the pins without any attentionizon the part or a 1 :80 WVhile the-casing is beingslid i over :the

the typist.

machine,- the cover may be held slightly closing bar 86 is prevented while it isbeing I slid over the machine, due to-lthefact "that" said bar is limited in its upward movement by the stop 94;, soasnot to collide w-iththe forward edges of the various-"handlesuon the carriage.

The usual lime-lock releasediey 10=5-and the ribbon-color shifti keys il06 project through the opening in the frontwvalli53, said opening beingso formed :as to; cleansaid line-lock release-key .and thetribboir;

color shift-keys, and thus avoiding the necessity of removing the rilobon col'or shift-key when the casing is slid over the machine;

The-casing may be lined with any suitable sounddeadening :material, such: as felt:

Variations maybe ire-sorted to within the scope of the 'invention, and portionsiof zthe improvements may" ibe used without others;

' Having thus described my invention, 1 claim: a J 1 v 1. A sound-deadening casinglfo a 'atype writing machine having .a front keyboard. extension, said casing iliaving' a-..body 100111 prisinga' front wall having an openingthrough "which said extension may extend forwardly, and a rear wall having an opening in line with said front opening and; sufficiently large to permit :passage of :the casingrearwardlly over said machine, rear wall first; alreleasableback for closing said opening in thezrear wall, and a;cover:liinged in rear tosaid body, the joint between the cover and: body being above said opening in' said rear wall.

2. A sound-deadening casing for a Etypewriting machine having a keyboard extension and" a oarriage-having a: forwardlyextending finger-pieca-said casing compris IOU ing a body part/land a cover providing therebetween at the front aslot throughwhich said finger-piece may project, said bodyrrp'art romp-rising a front wall :beneath said finger-piece and having an opening to permit said keyboard extension to pro ect therethrough, and .a rearwall having an opening in line with the front opening and sufficiently large to-permit passage of the machine therethrough, saidcover being mounted permanently above said rear wall and liftable to permit the finger-piece to, be passed through the slot in assembling the machine andthe casing, and a removable back for closing the opening in said rear wall. a

3. A removable bottomless soundi-deadening casing for use with a. typewriting ma chine fixed upon a base set below theftop of a desk and freely accessible only from the front, said casing having a front opening just large enough to permit the keyboard to project therethrough and a rear opening in line with the front opening and permitting passage of the'machine therethrough and into said casing when the latter is slid rearwardly from the front of the machine, releasable means for closing said rear opening, a. cover hinged in rear to said casing above said rear opening, and releasable means for securing saidcasing to said machine.

4:. A sound-deadening casing for a typewriting machine having a keyboard, said,

' 5. A sound-deadening casing for, a type-.

writing machine,'said casing comp-rising a coverpart and a body part, said body part comprising a front wall, side walls and arear wall having an opening sufficiently large to permit passage of the machine therethrough and into said casing, so that said casing may be slid on said machine from the front thereof, a removable back plate for closing said opening, means for mounting saidv back plate on said rear wall, said meanscomprising hooks on said back plate adjacent one edge thereof, said rear wall having openings for receiving said hooks, project-ions on said rear wall, said back plate having openings adjacent the opposite edge thereof for receiving said pro-e jections, and a-lateh' slidably mounted on said back plate and engaging said projections for locking said plate in position, said latch being slidable to release said plate.

:6. A sound-deadening casing forTa typewriting machine having a keyboard exten-g men, said, casing having a fixed front wall provided with an opening through which said keyboard extension'may be passed from the rear, and having locating means thereon to be engaged by said machine, said casing also having-a. rear insertion opening large Writing machine having a keybo-ardvextension, said'casin'g having at its front an opening just large enough to receive said exten sion, and locating means to engage the, front of the machine and assist inpositioning the same in the casing, said casing also having an opening in its rear to permit passage of the typewriting machine therethrough into position with' .the extension projecting through the front opening, and means pressing vthe machine against said locating means; said pressing meansincluding a door which closes said rear opening, and releasable means locking said-door, v 8. A sound deademng casing for a type writing machine comprising a carriage havmg a vcarriage-release 'lever. pro ecting forwardly therefrom, said casing having a slot at the .front thereof through Which said lever extends, and means for sealing said slot, said sealing means including a cushionstripifixed ad acent the upper edge of said slot, and an uncushioned slot-sealing bar yieldably mounted adjacentthe lower edge of. said slot, said bar being directly opposed to and contacting directly with said cushionstrip to seal the slot, said cushion-strip yielding locally as the lever travels along the slot and said bar being depressed bodily when said lever is depressed.

9. A sound-deadening casing for a type writing machine comprising a carriage having a carriage-release lever, said casing comprising a bodypart, a cover hinged at the rear to said body part and forming there with at the front a slot throughwhich said lever extends, and means for closingsaid slot, said means comprising a cushion-strip fixed to said cover adjacent the upper. edge of the slot, and a bar mounted on the body part adjacent the lower edge of the slot, said bar being directly opposed to and normally in engagement with said cushion-strip except where separatedby said lever, said carriage-release lever extending between saidbar and said strip, the mounting of said bar on said body part comprising a parallel linkage to guide said bar bodily downwardv when said lever is depressed.

10. A sound-deadening casing for a. type writing-machine having a :front keyboard extensiomsaid casing having a body comprising a front Wallfl-having an opening on said casingto, engage said guidingmeans 7 tohold saldcasing 1n posit on on said base,

a and :means to-retain said devices in effective relation with said guid ng means.

11.,A soundvdeadening casing foratype- Writing machine having a front keyboard extension, said casmg' havlng abody comprising anfrontrwallthavlng an opening forwardly, and arear iWa-ll having an opening in line with. said front openingand sufficiently large to permit passage of the eas- :ing irearwardly .over said. machine, rear Wall first, a releasable back for rclosing said open- ,ing inthe, rear wall a base for said casing, projections secured to said base, devices on i and ,lzitgcliesonSaidbase .to engage, said devices .to retain :thein in effective relation ithisaidprojections.

12. The v cor'nbination with; ahood for a typewriting rmachine, =of a" base for 7 said hood, guide-bars .to locate lthe hood on said -base,.,fingersr.atgthe forward ends of said guide-bars, pins projecting laterally from said hood to vengage; undersaid fingers, and spring-pressed latches pivoted on said guidebars to engage;said .pinsfto retain them in effective relation with said fingers. I

13. A soundqdeadening casing for a, typewritingtmachine having a front keyboard 1 extension, said casing having a body comprising a fIO1 1t ,W,a.ill,,hLV111g an open ng, through twhlch said extension may extend forwardly, and, a, rear Wallhaving an open- ?ing in line {)with said frontm opening and .Lsnificiently large ,tovpermitipassage; of the.

casing rearwardlyiover said machine, rear Wall first, a releasable back for :closing, said copening: in ,the lBfiIqWfllLgfi; base for said casing, meansto establish the {position of the machine ,onasaid base, ,means to estab- 1 ,lish the vposition'pflthe ,casing omsaidbase,

Y and ,meansto.securesaidzcasing to said base p to ,prevent accidental displacement relative thereto;

i 14. Aasound-deadening casing for a type- Writing; machine having a front keyboard extension, said casing having'a body com- 1 prisingija front allihaving an openingf through, which; said extension may extend forwardly, and a rear Wall hav ng an-opening in linex vvitht said ,irQnt opening and f :sufliciently large i-to; permit passage} .of the throngh which .saidextension may extend V,

saidprojections.

casingai casing rearwardly 7 over 7 said machine, rear Wall first, a releasable back for closing said opening in the rear v all, a basefor said ma-,

chine saidcasing, said basehaving de pressions to establ sh tl 1e -loca tionof the machine, devices at the sides of said, casing to establish the lateral location of sad cas- 1ng,,meajns to engage theback of sald casing to establish its location from front to back, and means to engage said casing-to prevent accidental displacement thereof on saidbase.

15. The combination with a typewriting machine and a sound-deadening casing therefor, of abase, meanstosecure the'first tWo mentioned elements to each other, and means to secure one of the first-mentioned elements to the base. i r a j 16."lhe combination With a sound-dead ening hood for a typewriting machine, of a base tosupportsaid hood and said machine, means tofguidesaid hood in ahorizontjal movement to position over said machine, holding means onsaidbase, and means on said hood to engage said holding means to secure said hood in ,positionjon saidbase.

17. Thecombinatlon W1thasounddeadf ening hood, for a typeW riting machine, of a said casinmto'sen a 'e.-.W 1thsa d ro'ections 1] r said base to guidesaid hood in ttllOllZQIltal movement ,to position over said Qmac'hine ith said {devices 1n effectlve relat on with T18. A sound-deadening casing for a'type-v. riting mach1ne,,;sa1d casing comprislng a front Wall having an openingthrough. which the keyboard projects, two side walls and arear Wall, the-rear Wallfhaving an opening to permit passage of v the machine therethrough and int0fthe; casing,' and a cover lateffor closinmsaid, o enin said 0 en- U I b 7 ingsbeingin line, and said machine of a a length occupying sa dopenlngs slmultaneouslyxin assembling the machine With the 9.]Thecombination with -a type'Writing machine comprising a carr age and various operating handles extend ng from said car- ,;riage, ofi a sound-deadeningicasing for said, vmachine, said casing comprising a front Wall, side Walls and {a rear Wall, the rear Wall havlng an openlng to permit the casing to be, sl dover saidmachlne' from'thefront,

said front [Wall being beneath saidjhandles to enable saidjfront Wall to be passed rear- .wardly ,When assembling the casing andjmachine, and releasable means locating said machine W th n sald casing. 20. A csound-deaden ng CHlSlIlg for a ityperiting machine having a keyboardextension, said casing having 'a fixed' front (Wall provided with} an opening through hich said keyboard extension may "be passed i from theerearaand' having locating means thereonto be engaged by said machine, said casing also having an insertion opening large enough to permit the passage of the machine into the casing, and a door for said insertion opening, said door having, con

, nected therewith, locating means to engage said machine and co-operate with theflocating means on the front wall to efiect' proper relative positioning of said machine and said casing.

21. A sound-deadening casing for a type writing machine having a keyboard extension, said casing having a fixed front wall provided with an opening through which 7 said keyboard extension may be passed from I the rear, and locating means to be engaged by said machine in its movement to pass said extension through theopening in said front wall, said casing also having an insertion opening large enough to permit the passage of the machine into the casing, a door for said insertion opening and locating means co-operative with said locating means, but movable to permit disassembling j of the machine and casing.

22. sound-deadening casing for a typewriting machine having a keyboard extension, said casing having a fixed front wall provided with an opening through which saidkeyboard extension may be passed from" the rear, and having locating means thereon to be engaged by said machine, said casing also having an insertion opening in the rear wall large enough to permit the passageof the machine into the casing, a door for said insertion opening having locating means thereon to engage the rear of the machine and co-operate with the locating means on the fixed front wall to position said machine in the casing, and means engaging said door to cause its locating means to press the" machine against the front locating means.

23. A sound-deadening casing for a type writing machine having a keyboard exten-J sion, a traveling carriage and an operating finger-piece proyectmg forwardly from said carriage, said casing having a fixed front wall provided with an opening through -which said extension may be passed from the rear, locating means to be engaged by the front of the machine during such insertion, said casing also having an insertion opening in its rear wall largeenough to permit the passage of-the machine into the casing, a door for said insertion opening,

and a cover hinged upon the casing above said rear opening to be lifted at its frontto permit the insertion of the finger-piece between the front wall and the cover.

24. The combination with a' typewriting machine, comprising a carriage and a han: dle extending from said carriage, of a sound-deadening casing for said machine, said casing having aslot therein through ,7

which said handle extends, and slot-sealing depressed.

means, said slot-sealing means including a rigid bar extending along said slot, and a locally yieldable cushion opposed to said bar and contacting therewith.

'25. The combination with a typewriting' machine, comprising 'acarriage and a handle extending from said carriage, of a sound-deadening casing for said machine,

said casing having a slot therein through which said handle extends, slot-closing means, saidslot closing means comprising a bodily yieldab'le rigid bar and a'locally yieldable cushion contacting with said'bar,

and means to hold said bar yieldingly against said handle; 26. The combination w th a typewriting machine, comprising a carriage and a han- 'dle extending from said carriage, of a sound-deadening casing for'said machine,

said casing having aslot'th'erein through which said handle extends, and slot-closing means including a rigid bar extending along said slot and a locally yieldable cushion opposed to said barand in contact therewith,

a-linkage to guide said bar, and means yieldingly holding said bar against said handle a 27. The combination'with atypewriting machine, coinprisinga carriage and a ban -i. dle extending from said carriage, of a sound-deadening casing for said machine, said casing having a slot there n through which said handle extends, slot-clos ng means including a rigid bar extending;

along said slot and a cushion opposed'to said'bar, a parallel linkage to guide said bar, and a spring holding saidbar'against said handle and said'cushion." r

'28. The combination with a, typewriting machine, comprising a carriage and a depressible carriage-release lever'on sa d carriage, of a sound-deadening.casing for said machine, said casing having a slot therein through which said lever extends, slot-closmg means extending along said slot, said slot-closing means comprisinga cushion disposed above said lever and a rigid bar dis- 7 posed beneathsaidle-ver, said bar being dissaid abutments' and carried by said releasable plate. a W i 30. A'sou'ndedeadening casing for a typewriting machine having a main frame with a keyboard extension, said casing comprising a front wall having an opening through which said extension may be passed from the rear, and a rear wall spaced from the front wall sufficiently to accommodate said main frame and having an opening sufliciently large to receive the machine therethrough into said casing and so located that, as a result of such relative movement, said extension will project through the opening in the front Wall of the casing, a closure for said opening in the rear Wall and relatively separable means for relatively locating and locking together said machine and easing. a

31. The combination with a typewriting machine, of a sound-deadening casing fitted thereon and having at the rear an opening for inserting and removing the machine and at the front an opening to permit operation of the machine from the outside of the casing and a set of relatively separable locators determining the position of the machine in the casing. I

32. The combination with a typewriting machine, of a sound-deadening casing fitted thereon and having at the rear an opening for inserting and removing the machine and at the front an opening to permit opera tion of the machine from theoutside of the casing, and means fastening the casing to the typewriting machine and effecting a predetermined relative location between said casing and said machine, said fastening means being releasable and permitting the relative withdrawal ofthe machine through said rear opening.

JoHN WALDHEIM.

Vitnesses:

CATHERINE A. NEWELL,

JENNIE P, TI-IORNE. 

